@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.75);
    --bg-card-hover: rgba(31, 41, 55, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(217, 70, 239, 0.3);

    --primary-magenta: #e11d48;
    --primary-gradient: linear-gradient(135deg, #e11d48 0%, #d946ef 100%);
    --cyan-accent: #06b6d4;
    --emerald-accent: #10b981;
    --amber-accent: #f59e0b;

    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;

    --shadow-glow: 0 8px 32px 0 rgba(225, 29, 72, 0.2);
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    letter-spacing: -0.02em;
}

/* App Shell */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.brand-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    padding: 0.5rem;
}

.brand-logo {
    width: 44px;
    height: 44px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    font-size: 1.5rem;
    font-weight: bold;
    color: #fff;
}

.brand-title {
    font-size: 1.35rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.25s ease;
    border: 1px solid transparent;
}

.nav-link:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.04);
}

.nav-link.active {
    color: #fff;
    background: var(--primary-gradient);
    box-shadow: var(--shadow-glow);
}

.main-content {
    margin-left: 280px;
    flex: 1;
    padding: 2.5rem;
    max-width: 1300px;
}

/* Header Navbar */
.top-navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1.2rem;
    border-radius: 999px;
    backdrop-filter: blur(12px);
}

.user-avatar {
    width: 34px;
    height: 34px;
    background: var(--cyan-accent);
    color: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

/* Header & Date Filter Responsive Bar */
.usage-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.page-title {
    font-size: 1.8rem;
    font-weight: 700;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.date-filter-bar {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.date-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.date-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.date-control {
    padding: 0.45rem 0.75rem;
    font-size: 0.85rem;
}

.preset-filter-bar {
    display: flex;
    gap: 0.35rem;
    align-items: center;
}

.btn-preset {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-preset:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    border-color: var(--border-highlight);
}

.btn-preset.active {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.25), rgba(99, 102, 241, 0.25));
    border-color: var(--cyan-accent);
    color: #38bdf8;
    font-weight: 600;
    box-shadow: 0 0 12px rgba(14, 165, 233, 0.2);
}

.radzen-date-control.rz-datepicker {
    background: rgba(15, 23, 42, 0.85) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-md) !important;
    height: 38px !important;
    color: var(--text-main) !important;
    display: inline-flex;
    align-items: center;
}

.radzen-date-control.rz-datepicker:focus-within,
.radzen-date-control.rz-datepicker:hover {
    border-color: var(--cyan-accent) !important;
}

.radzen-date-control input.rz-inputtext {
    background: transparent !important;
    color: var(--text-main) !important;
    font-size: 0.85rem !important;
    padding: 0.45rem 0.6rem !important;
    border: none !important;
    box-shadow: none !important;
}

.radzen-date-control .rz-datepicker-trigger {
    color: var(--text-muted) !important;
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    height: 38px;
    width: auto;
}

/* Glass Card */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: all 0.3s ease;
}

.glass-card:hover {
    border-color: var(--border-highlight);
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.kpi-card {
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-gradient);
}

.kpi-card.cyan::before {
    background: var(--cyan-accent);
}

.kpi-card.emerald::before {
    background: var(--emerald-accent);
}

.kpi-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.kpi-value {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}

.kpi-subtext {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-danger {
    background: rgba(225, 29, 72, 0.15);
    color: #f87171;
    border: 1px solid rgba(225, 29, 72, 0.3);
}

/* Data Table */
.data-table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th {
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem 1.25rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
    color: var(--text-main);
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Mobile Reading Cards */
.mobile-reading-cards {
    display: none;
    flex-direction: column;
    gap: 1rem;
}

.mobile-reading-card {
    padding: 1.1rem;
    border-radius: var(--radius-md);
    background: rgba(17, 24, 39, 0.85);
    border: 1px solid var(--border-color);
}

.mobile-metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    padding: 0.75rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 0.5rem;
}

.mobile-metric-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.mobile-metric-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Auth Login Card */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    background: radial-gradient(circle at top right, rgba(225, 29, 72, 0.15), transparent 40%),
                radial-gradient(circle at bottom left, rgba(6, 182, 212, 0.15), transparent 40%);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    padding: 2.5rem;
    border-radius: 24px;
}

.form-group {
    margin-bottom: 1.35rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.85rem 1.1rem;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.25s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-magenta);
    box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.2);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.25s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: var(--shadow-glow);
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 36px 0 rgba(225, 29, 72, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Progress bar inside table */
.usage-bar-bg {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.usage-bar-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 4px;
}

.mobile-toggle-btn {
    display: none;
}

/* Mobile Responsive Media Queries */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: sticky;
        top: 0;
        z-index: 1000;
        padding: 1rem 1.25rem;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        background: var(--bg-secondary);
    }

    .brand-header {
        margin-bottom: 0;
        padding: 0;
    }

    .mobile-toggle-btn {
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-sm);
        color: var(--text-main);
        font-size: 1.25rem;
        cursor: pointer;
    }

    .nav-list {
        display: none;
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
    }

    .sidebar.show .nav-list {
        display: flex;
    }

    .sidebar.show div[style*="margin-top: auto"] {
        display: block !important;
    }

    .sidebar:not(.show) div[style*="margin-top: auto"] {
        display: none !important;
    }

    .main-content {
        margin-left: 0;
        padding: 1.25rem;
        max-width: 100%;
    }

    .top-navbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
    }

    .user-badge {
        width: 100%;
        justify-content: flex-start;
    }

    .usage-header-row {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        margin-bottom: 1.25rem;
    }

    .page-title {
        font-size: 1.4rem;
    }

    .page-subtitle {
        font-size: 0.8rem;
    }

    .date-filter-bar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
        width: 100%;
        background: var(--bg-card);
        padding: 1rem;
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
    }

    .filter-btn {
        grid-column: span 2;
        width: 100%;
        margin-top: 0.25rem;
    }

    .kpi-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem;
    }

    .glass-card {
        padding: 1.25rem;
    }

    .kpi-value {
        font-size: 1.8rem;
    }

    .desktop-only-table {
        display: none !important;
    }

    .mobile-reading-cards {
        display: flex !important;
    }

    .mobile-metrics-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }

    /* Form and Auth Card */
    .auth-container {
        padding: 1rem;
    }

    .auth-card {
        padding: 1.5rem;
        border-radius: 16px;
    }

    /* Data Table Touch Scrolling */
    .data-table-container {
        -webkit-overflow-scrolling: touch;
    }

    .data-table th, .data-table td {
        padding: 0.75rem 0.85rem;
        font-size: 0.85rem;
        white-space: nowrap;
    }
}